Propeller



April 14, 1925. Y

J. D. HoRNBucKLE, sR

PROPELLER Fild'neo. 1925A INVENTOR /M/JMWM Patented Apr. i4, i925.

JAMES D. Hon-NBUGKLE, sa., or sen arose,` camronnm..

PROPELLER.

Application filed December T all whom t may concern.'

Be it known that I, JAMES D. I-IonN- BUCKLE, Sr., a citizen of the UnitedStates, and a resident of San Jose, in the county of Santa Clara and State of California, have invented certain new and useful Improvements in Propellers, of which the following is a specification.

It is the object of my invention to provide an aeroplane that will occupy but small space, that will permit of movement along a vertical axis; that cannot fall into a tail or nose spin; and that provides a covered compartment for the operator.

In the drawing:

Figure 1 is a. side elevation of the device.

Figure 2 is ay plan view of the same.

Referring more particularly to the drawing, 1 indicates a rectangular framework of light material covered with a light fabric 2 and having its upward forward portion sloping as at' 3.

Securely mounted upon each side of frame 1 and extending av distance above its upper edge, are bars 4 connected by a rotatable shaft 5 and forming aI rigid support for Said shaft midway the length of' frame 1.

Mounted on shaft 5 to rock therewith is a` plane 6 having side pieces 7 mounted thereon, the plane 6 being somewhat longer and wider than frame 1. To each corner of plane 6 is attached a cable as indicated at 8 8 and S21-8a, these cables passing over their respective pulleys 9-9 and ila-9a to to a control lever 10 pivotally `mounted at 11 on frame 1. It is obvious that a forward movement of lever 10 will tilt the forward end of the plane 6 upwardly, and ay backward movement of the same will reverse the position of the plane. 6 to any desired angle. i

At 12 is indicated a rudder pivotally mounted at 13 on frame 1 and controlled by means of cables 141-1L attached thereto and passing over their respective pulleys 15b-1F a Vto control lever 10. A lateral move nient of lever 10 will swing the rudder 12 to the right or left as desired.

At 16 are twin propellers mounted on shafts 17 in bearings 18 arranged at the bottom of sloping portion 3 and designed to pass the air over frame 1-2 and under plane 6. These propellers are driven by means of gear and shaft connections 19 to engine 20, clutches 21-22 being inserted 3, 1923. Serial No. 678,315.

between each propeller and the engine drive..

eol

26-26 and 26a-26'DL upon opposite sides of frame 1 2 and above the plane. thereof as shown. These propellers are similar in construction to propellers 16 and are operated in any suitable manner as by gear and shaft connections )ff-27a to engine 20, a` clutch being inserted in said connections as at lIt may be readily seen from the foregoing description that the propellers 16 may be operated together or independently by operating clutches 21-22, and the side propellers may be thrown into or out of actionby clutch 28. n

It might be readily seen from the foregoing description that the construction of the plane 6 is such that while it may be tilted as desired the side pieces 7 prevent the air from being carried off sideways and con- ""r fine it to the under side of the plane during its passage thereover. The inside flanges on the propeller blades in a. similar manner confine. the direction of flow of they air in such a manner as to secure the greatest power therefrom.

Uponplane 6 is arranged a gas bag 29 which when filled with a suitable gas lighter than air substantially `offsets the weight of the framework 1-2 and consequently assists in effecting a vertical movement in ascending or descending, besides stabilizing the whole structure. Q

It is to be understood, of course, that while I have herein shown and described one specific* embodiment of my invention, changes in form, construction, proportions, and method of operation may be made with-A in the scope of the appended claims.

I claim:

1. In an aeroplane -a propeller comprising a plurality of rectangular blades arranged at substantially right angles to its anis of rotation, each blade being curved to bite into the air and having a flange formed on lli) .one edge only and extending at right angles to its operative surface and on the inner edge thereof and extending from the center to the outer edge of the propeller.

2. In an kaeroplane a, propeller eompring a. plurality of blades arranged at substantially right angles to its axis of rotation,

each blade being curved to bite into the air and having a flange formed on one edge only and extending at right angles to its op- 10 erati've Surface and on the inner edge thereof and extending from the center to the outer edge of the propeller.

J. D.V HORNBUCKLE, SR. 

